Oh, boy. Lol.
The $2,800/yr in licensing & DDTC registration, $2k on CAD/CAM software, the $8k in liability insurance I pay, a few thousand in utilities......nothing compared to machines and tooling. I'm a small manufacturer, and we've dropped over a hundred grand on machines, tooling, consumables and bar stock since July. The
WIRE for powering my Mazak Integrex 200 SY was $1,400. The tool measuring eye on my SQT15M failed last year, that was a $3,600 repair.
Manufacturing is hideously expensive. You think quality automotive tools are spendy? Start looking at all things machining and CNC, from the machines themselves to tool holders to carbide inserts and end mills. I spend more in a year on consumables than a career mechanic will have invested in a lifetime of buying Snap-On stuff. We'll burn about $400 worth of inserts in a week on ONE lathe.
Yes, we could make European style aluminum monocores cheaply. But they're loud and not very durable. So we build proper baffled cans using PH stainless steels, titanium, Inconel. These are not cheap materials, they are much harder on tooling, slower to machine, and we're using a lot more material per can to do it right. My 8" Accipiter model, a $550 large magnum and full auto rated rifle suppressor, uses 22" of 1-5/8 17-4 stainless bar stock to machine the blast chamber, 8 baffles and cap, then I have to finish bore and clip the baffles, then thoroughly clean parts with acetone, align them, fusion tig weld, finish machine after weldment, heat treat, engrave, bead blast, Moly Resin finish. It's a process. Not to mention what it took to develop that can and my other 16 models. Lots of cans made, minor tweaks in an iterative process, testing on a very expensive impulse sound meter, lots of rounds & time for accuracy testing and destructive testing to failure on machine guns.
The aluminum monocore .22 can Odd Job posted above has two parts, minimal threading & fitment, uses almost exactly the same amount of tube and bar stock the finished product represents. My Salamander model, pictured below, is made of titanium and stainless steel and has 13 individually machined parts. 10 nested baffles, a tube threaded on both ends, threaded front cap, mount with internal and external threading, lots of precision fitment involved. It's also quieter than those monocore cans despite being significantly smaller at 3/4" diameter by 5" long and only 2.5 ounces, yet it can still handle .17 HMR due to the high strength materials used. 6.5 times the parts, much more expensive materials, lots more machine time and manual labor. That's why it costs 4 times as much, and the performance justifies it.